Patents by Inventor Kamal Hatami
Kamal Hatami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11092289Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump immersed in the cryogen space having an inlet for receiving a quantity of fluid from the cryogen space, and an outlet for delivering the fluid therefrom. The pump assembly further includes a pump drive unit for driving the immersed pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.Type: GrantFiled: January 10, 2020Date of Patent: August 17, 2021Assignee: WESTPORT FUEL SYSTEMS CANADA INC.Inventors: Kamal Hatami Aghdam, Davor Baros, Cameron G. D. Scott, Timothy S. Coleman, Samira Barakat-Hamel
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Publication number: 20200149682Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump immersed in the cryogen space having an inlet for receiving a quantity of fluid from the cryogen space, and an outlet for delivering the fluid therefrom. The pump assembly further includes a pump drive unit for driving the immersed pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.Type: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Inventors: Kamal Hatami Aghdam, Davor Baros, Cameron G.D. Scott, Timothy S. Coleman, Samira Barakat-Hamel
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Patent number: 10551002Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump having an inlet disposed within the cryogen space for receiving a quantity of the fluid from the cryogen space, and an outlet for delivering the fluid therefrom, and a pump drive unit for driving the pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.Type: GrantFiled: March 24, 2016Date of Patent: February 4, 2020Assignee: WESTPORT POWER INC.Inventors: Kamal Hatami Aghdam, Davor Baros, Cameron G. D. Scott, Timothy S. Coleman, Samira Barakat-Hamel
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Patent number: 10316837Abstract: A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.Type: GrantFiled: March 25, 2015Date of Patent: June 11, 2019Assignee: WESTPORT POWER INC.Inventors: Timothy S. Coleman, Kamal Hatami Aghdam
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Patent number: 10274094Abstract: A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.Type: GrantFiled: March 11, 2014Date of Patent: April 30, 2019Assignee: WESTPORT POWER INC.Inventor: Kamal Hatami Aghdam
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Publication number: 20180119883Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly.Type: ApplicationFiled: March 24, 2016Publication date: May 3, 2018Applicant: Westport Powrt Inc.Inventors: Kamal Hatami Aghdam, Davor Baros, Cameron G.D. Scott, Timothy S. Coleman, Samira Barakat-Hamel
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Patent number: 9687803Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.Type: GrantFiled: September 28, 2012Date of Patent: June 27, 2017Assignee: Air Products and Chemicals, Inc.Inventors: Soheil Alizadeh-Khiavi, Brooke Cox, Kamal Hatami, Daryl Musselman, Rajeev Agnihotri, Paul Berlowitz, Bruce Derites, Jeffrey Frederick, Jeffrey Grenda, Frank Hershkowitz, Zhiguo Hou, Novica Rados, John Siller, Richard Socha, George Walchuk
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Publication number: 20170146010Abstract: A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.Type: ApplicationFiled: March 25, 2015Publication date: May 25, 2017Inventors: Timothy S. Coleman, Kamal Hatami Aghdam
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Publication number: 20160032920Abstract: A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.Type: ApplicationFiled: March 11, 2014Publication date: February 4, 2016Inventor: Kamal Hatami Aghdam
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Publication number: 20130270484Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.Type: ApplicationFiled: September 28, 2012Publication date: October 17, 2013Applicant: Air Products and Chemicals, Inc.Inventors: Soheil Alizadeh-Khiavi, Brooke Cox, Kamal Hatami, Daryl Musselman
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Patent number: 8551444Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.Type: GrantFiled: October 25, 2007Date of Patent: October 8, 2013Assignee: Air Products and Chemicals, Inc.Inventors: Rajeev Agnihotri, Soheil Alizadeh-Khiavi, Paul Berlowitz, Brooke Cox, Bruce Derites, Jeffrey Frederick, Jeffrey Grenda, Kamal Hatami, Frank Hershkowitz, Zhiguo Hou, Daryl Musselman, Novica Rados, John Siller, Richard Socha, George Walchuk
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Publication number: 20100166645Abstract: Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and ‘steam push’. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.Type: ApplicationFiled: October 25, 2007Publication date: July 1, 2010Inventors: Rajeev Agnihotri, Soheil Alizadeh-Khiavi, Paul Berlowitz, Brooke Cox, Bruce Derites, Jeffrey Frederick, Jeffrey Grenda, Kamal Hatami, Frank Hershkowitz, Zhiguo Hou, Daryl Musselman, Novica Rados, John Siller, Richard Socha, George Walchuk